I. Product overview

JTY-GD--920E addressable heat detector (Detector hereunder) is a mated product of the 9000 series fire alarm control panels. It uses a two-bus work mode. With an internal microprocessor, it supports electronic coding. The detector realizes real-time acquisition of the in situ temperature data and sends back the data to a fire alarm control panel. It can also receive and execute the control commands given by a fire alarm control panel. When in a routing inspection, the detector indicator will blink. When there is a fire in the monitored area and the temperature has reached the alarm threshold, the fire alarm control panel will confirm a fire alarm according to the received message sent from the detector, and the detector indicator will light at the same time to indicate a fire alarm.

The detector is suitable for such industrial and civil buildings that have a great deal of heat when fire takes place, such as kitchens, boiler rooms, generator rooms, drying workshops and smoking rooms and is not suitable for places with a great deal of smoke but little heat.

II. Product features

ü    It can realize electronic coding and rewrite the address via coder in situ.

ü    Within a single-chip microcomputer, it can realize real-time data acquisition and processing, realize a curve tracing for the field situation.

ü    It has a temperature compensation function and a sensor fault detection function (fault reporting  to fire alarm control panel).

ü    Non-polarity, two-bus connection that ensures convenient installation and maintenance.

ü    Designed with an upper cover and a lower cover and installed on an independent base, it can be installed, debugged and maintained conveniently.

III. Technical parameters

1.      Executive standard: GB4716-2005

2.      Operating voltage: 24V (pulse modulation)

3.      Operating current: ＜300uA (monitoring status) or ＜1.5mA (alarm status)

4.      Work indication: The red indicator will blink in the monitoring status or remain lit in the alarm status.

5.      Weight: about 47g

6.      Product class: A2

7.      External dimensions: diameter: 100mm, height: 56mm (with the base)

8.      Wiring method: non-polarity two-bus system (L1, L2)

9.      Operating environment: Indoor, temperature: －10℃～+50℃; relative humidity: ≤95% (40℃±2℃, without condensation)

10.    Coding mode: It can realize electronic coding via coder in situ. Address codes 1 to 324 are available for selection.

11.    Installation height: ≤8m

12.    Protection area: about 60m². For details, see related provisions in GB50116-98 Code for Design of Automatic Fire Alarm System.

 Matched host machine: fire alarm control panel